1Portable Brush: The battery brush has a portable design, small size, easy to carry to any place you need, and can be easily used anytime, anywhere. 2T Shape Design: The T shape design allows you to easily clean battery posts and terminals from various angles, making sure all surfaces are thoroughly cleaned. 3Cleaning Effect: Remove dirt, corrosion and rust from the battery terminals to make good contact between the car and the battery, maintain the best performance and long term use. 4Durable Material: Made from premium Abs and aluminium alloy materials, these battery post terminal cleaner brushes are designed to last and be used repeatedly. 5Versatile Tool: Though these brushes are primarily designed to clean batteries, they can also be used for cleaning other similar components like connectors, switches, making them a handy tool to have in your toolbox.